Nut-cracking machine.



T. C. SUZZI.

NUT CRACKING MACHINE.

APPLICATION FILED APBML 1910. 1,060,648. Patented May 6, 1913.

9 BHBETS-BHEET l.

T. G. SUZZI.

NUT CRACKING MACHINE.

APPLIUATION FILED 11.4, 1910.

1,069,648. Patented May 6, 1913 9 SREET8BHEET 2.

T. G. SUZZI.

NUT CRACKING MACHINE.

APPLICATION FILED ABBA, 1910.

1,060,648. Patented May 6, 1913.

T. C. SUZZI.

NUT CRACKING MACHINE.

APPLIGATION FILED APB-.4, mo.

1,060,648. Patehted May 6, 1913.

mama

T. G. SUZZI.

NUT CRACKING MACHINE.

APPLICATION FILED an, 1910 1,060,648. Patented May 6, 1913 9 SHEETS-SHEET 6.

T. G. SUZZI,

NUT CRACKING MAGHINE.

APPLICATION FILED APRA, L910.

Patented May 6, 1913.

T. G. SUZZI. NUT CRACKING MACHINE APPLICATION FILED APRA, 1910. 1,060,648, Patented May 6, 1913 asnmrrs-wnm a T. C. SUZZI.

NUT CRACKING MACHINE.

APPLICATION FILED APBA, 1910.

i,060,648. Patented May 6, 1913.

9 SHEETS-SHEET 9.

W vljnz/e iaff UNITED STATES PATENT oFFIcE.

TADDEO C. SUZZI, OF CHICAGO, ILLINOIS ASSIGNOR, BY MESNE ASSIGNMENTS, TO

UNITED FIG 8; DATE 00., A COPARTNERSQIP CONSISTING OF GINOCCHIO, AND ANTON M. MEYER, OF CHICAGO, ILLINOIS.

r NUT-CRACKING MACHINE.

PETER CO STA, LOUIS Specification of Letters Patent.

Patented May 6, 1913.

Application filed April 4, 1910. Serial lilo. 553,836.

To (111 whom. it may concern: over which the carrier chain is trained. Fig.

Be it known that I, TADDEO C. SUZZI, -'15 ls a fragmentary detail enlarged citizen of the United States, residing at verti ciil longitudinal section showing the thicago, in thecounty of Cook and State relative positions of the plunger-s and nutof Illinois, have invented certain new and carrier pockets. Fig. -l6- is a detail view useful Improvements in Nut-Cracking Mg in side elevation of an adjustable cam emchines; and I do'hereby declare the followployed, the shaft thereof being shown in secing to be a full. clear, and exact def- .ption. Fig. 17- is a snnilar view of the tion of the invention, such as will enable opposite side of the same. Fig. -18-- is a others skilled in the art to which it appersectional view of the same on the line l818 tains to make anduse the 'saine'i of Fig. -2()-. Fig. 19 is a sectional This invention relates to'improvements view of the same on the line 19-l9 of in nut cracking machines and has for its Fig. 16. Fig. .20 is a detail secobject to provide a machine of this charactional view of the same von the line 20-20 ter whichis simple,-dnrable, eflicient and of Fig. 16. a 65. rapidly operable. I The present machine is particularly The invention consists in the features of adapted and designed for cracking pecan construction and combinations of parts here nuts although it may be employed for other matter, fully described and claimed. I purposes ormodified as required to suit itv In the'accompanying[drawings illustrat-' to theacracking of nuts of any other char- 7O ingt'his invention; Figure 1 is a top acter without departing from the spirit of plan view of a nut cracking machine conthe invention. structed inaccor(lai ice with my invention; The general shape of a pecan nutistoo Fig. -2 is'a front elevation of the sa mev well-known to require description, but for Fig. 3 isa plan view of thesame with the purpose of making clear the advantages said plates and hoods removed to expose of my present invention I desire to'call to view the internal mechanism. l ig. '4- attention to the fact that. pecan nuts vary is a central vertical longitudinal section of greatly in length and likewise in diameter the machine taken on the line of Fig. or circumference and that these variations 1-. Fig. 5 is a detail vertical transare frequently disproportioncd. in different so verse section on the line -5 5 of Fig. '1. nuts. That is to say, pecan nuts are some- Fig. '(i' is a central vertical transverse times of relatively great length in propor" section on the line l'3(i of Fig. -1. .Fig. tion to diameter and at other times of rela- '7.- is a vertical transverse section on the tively great diameter in proportion to line 7-7 of Fig. -1. Fig. 8 is a length. They vary also in size, that is to similar section on the line S -S of Fig..-1. say, they are graded accoroing to size, the Fig. '9- is a plan view on an enlarged longer wellproportioned nuts constituting scale showing the'gearing em iloyed for aca higher grade than the shorter and smaller t'uating the-nut carrying mechapism, the kinds; Aside from the variations in size top of the gear casing being removed to referred to, the shells of nuts coming from expose said gearing to view. Fi 1 difl'erent districts vary 'in thickness; those is a vertical sectional view on the line having the heaviest shells being known as lO-'1 of Fig. 9. Fig. l1-- is a verhard-shell and those having thinner tical section on the line 1111 of Fig. 9-. shells being known as soft-shell These Fig. 12- is a detail vertical sectional nuts are cracked by pressure exerted upon ,95 view on the line 12' 12 of Fig. 6. Fig. the ends thereof and such pressure serves 13- is a fragme...ary detail view in side to fracture the entire shell in i'nultitudinmls elevation of the links of the carrier emdirections, the same being almost as brittle ployed. Fig. l4 is adetail central \eras glass but the extent to which the ends tical section through one of the sprockets of the nuts must be forced toward each other in order to effect fracture of the shell, and without transmitting such pressure to the kernel to the injury of the latter, must I be varied somewhat in accordance with vaessential that a machine of this character should work rapidly in order that. its economy may be materially realized but at the same time the rapidity of its operation should not interfere with theetlicient manner'of the performance of its function.

In the construction and manner of operation of my present machine I make use of an old and well-known idea in the art which has been previously. successfully carried outto a moderate extent, that is to say,the nuts are carried into the path of relatively widely separated cracking plungers which move forward into engagement with the nut, the latter acting as a'stop to limit this primary movement of said plungers and determining the same. The plungers having been primarily brought into such engagement with the nut are subsequently given-an added movement toward each other thus impart-- mg a crushing pressure to the shell of the nut and serving to fracture the same. The primary movement, as will be seen, is indeterminate as it must necessarily vary in ac- 4Q cordance with variations in length of interposed nuts but the secondary or crushing movement is fixed and determined. It will be obvious that the plungersemployed mustpossess the strength and rigidity necessary to perform the requisite function and to impart such strength and rigidity a considerable-weight is necessary. Rapidity'of operation necessitates rapid primary movement of the plungers toward each other and into engagement with the nut, the latter serving to bring the same to a'sudden stop. Accordingly, the weight of the plungers and the-means employed for moving the same into engagement with the nut must not impart sufficient force to fracture the shell as, if this occurs, the secondary movement imparted will obviously serve-to not only further fracture the shell but to crush and, thus detract from the value of the kernel.

My present invention relates more particularly to the specific mechanism employed for imparting primary movement to the plungers into engagement with the nuts so as to firmly engage the same without, however, at this time fracturing them, and'conand particulars as will hereinafter appear. Theniachine comprises a suitable frame consisting substantially of a table A supported upon the legs B. On one end portion of the table there is mounted a supportin member 2* which carriesa plate 2 provided with a recess in which a plurality of parallel plungers 3 are reciprocally movable, said plungersbeing separated from each other and from the 3nd walls of the recess by anti-friction metal interposed between the same and suitably, held in place in said'res rcessh A cap plate 5 ,is adapted to cover said "plate'2 and be secured to the same andserves bearings formedbetween the bottom of the irecess in 'said plate 2 and said top plate 5 ginconnection with the said lateslor strips :4 of anti-friction metal. Sai plungers 3 are square in cross section and each is equipped ;at one end with a cylindrical extension 6 :preferably threaded therein and held securely in place thereon by means of lock nuts ably made of a harder metal than plungers 3 and are provided in their outer ends with conical recesses in which the ends of nuts to be cracked are adapted to be re- .ceived.

plate 2 is a block 8 held against movement relatively to saidtable by means of a pin or. pins 9 passing through the same into openings in the table top and passing also through openings in a cap plate 10 covering the same. In the rear ends of the plungers 3 are threaded openings 11 and in said block 8 in axial alinement with said plun ers 3 are similar threaded openings 12, the t reads in said block'and plungers being respectively right and left and adapted to receive the portions 13 aind 14 of shafts 15 each of which is equipped between its ends with a relatively long spur pinion 16. In said cap plate 10 and in a block 17 disposed below the same and resting in the bottom of a supporting pocket 18 in the supporting member 1 for said plungers and the mechanism for actuating the same, as well as in the bottom wall of said pocket and the table top, are slots 19, 20- and 21 respectively, through which plungers 22 pass and in which they means of plates 4'of brass' or other suitable 7 or the like. Sai d:extensions 6 are prefu e Mounted on the table rearwardly of the from the same, and in such other details ,to prevent said plungers 3 from leaving; the

respectively right and left threaded end.

' greatest radius ofthe cam surfacehas are guided Each of the said plungers is eqpipped at its upper end portion with a rack 23 meshing with the said pinions 16 and are adapted in reciprocating to turn said shafts 15 thereby imparting longitudinal movementto said plungers 3. Each of the said plungers 22 is adapted to move by gravity in one direction and in the other direction is raised by means of a bar 24 extending transversely of the table and mount ed at its ends in vertical guides 25 (more particularl shown in Fig. -7-) and which are contro led by means of cams '26 on a shaft 27 geared, as hereinafter described, to the drive shaft of the machine. A strip of fiber' covers said bar'24 to protect the same is adapted during revolutions to engage antifriction rollers 28 carried bysaid, bar 24 thereby raising the latter at intervals and permitting the same,- after' the said point of passed the same, to drop relatively suddenly to the lower limit of its movement,such drop being, however, somewhat retarded by the straight rear ed es of the cams 26,said rear edges instead 0 being radial, forming part of a chord and extending tangential to the hub. The plungers 22 are thus. deprived of their support and will obviously. drop by gravity thereby imparting rotary movement to the shafts 15 and, as will be obvious, imparting longitudinal movement to said plungers 3. The said table top carries at itsother end portion a similar supporting member 29 provided in the end portion nearest adjacent the end portion of the first-named supporting member 24 with a recess disposed hi alinement with the recess in which said first-named plungers 3 are disposed and in which a plunger 30 is reciprocally movable, the' latter being provided at the end opposing the plungers 3 with similar heads or extensions (3 similarly mounted therein. The said plunger 30 is connected by means of two rods 3] and 32 with a plate or plunger 33 disposed in a guide recess 34 in the rear end portion of the said supporting member 29, both said guide recesses for said plungers-30 and being covered by cap plates 35 and 36 respectively, which serve to hold the said plungers in place. Said plunger 33 is provided on its rear edge with a pair of parallel lugs 37 between which an anti-friction roller 38 is received, the latter being revolubly mounted on a pin 39 passing through said -projections. The said antifriction roller is adapted to be engaged by a cam 40 carried by a shaft 41 extending transversely of the machine at one end thereof and which is journaled adjacent its ends in bearings 42 suitably supported on the frame; the said shaft 41 being also suitably geared to the drive shaft of the machine as will be hereinafter more fully described. Spanning the pocket 18 of said supporting member 29 and extending transversely to the direction of movement of the plungers 30 and 33 is a bar 43 which is equipped between its. ends with a downwardly projecting plate or flange 44: provided with two openings for the passage of plungers 45, the lat ter being secured in the forward end of the plunger 33 in any suitable manner. Helical compression springs 46 are disposed upon said plungers and are interposed bctwe cn the forward end of the plun er 33 and the rear face of said plate or t ange 44 and serve to maintain said I plungers 30 and 33 normally at the rearward limit of their movement.

The cam 40 consists of a hub having a cylindrical surface concentric with its axis of rotation and extending through an arc of substantially 210 degrees and isprovided on'the remaining portion of its circumference with a segmental projection 47 termi'nating at one end inan inclined face 48 upon which the said anti-friction roller 38 is adaptechto travel from said cylindrical face of the fob to the outermost face of said projection 47. This movement of the said roller 38 obviously involves forward tween the said cylindrical portion of the 'hub of said cam and of the said seq-rental projdction 47 thereof. In the face of said segmental projection there is, as is shown in Figs. 16 and 17, a recess 49 in which is mounted a block 50 of metal having rounded edges and projecting therefrom. The. lower face of said projection 50 is inclined and.

rests upon the inclined face of a wedge 51 resting upon the bottom of said recess, said wedge being adapted to be lllOVQtl longitudinally in order to vary the projection of said block from the face of said segu'iental pr jcction 47. l\'[ovement of the said wedge is effected by means of a. set screw 52 mounted in a threaded opening in the side of the cam and having its head projecting from the recess in which it is contained. At its inner end said head engages a shoulder on said wedge and is adapted to inove the same in the direction of insertion of said-scrcw to raise and increase the projection of said block 50 from said recess. A similar screw 53 mounted in a radial opening in the face of the projection 47 engages said block 50 and holds the latterfirmly down upon the wedge and likewise prevents longitudinal .movement of said block in said-recess.

It will be obviousfromthe foregoing deseription that'each of the plungers 3 is mov-' able independently of the other and that all of them may be moved simultaneously to respectively difierent positions while the heads 6 ofthe plunger 30 are all moved si- 1 I multa'neously a; predetermined distance. The forward movement of the plunger 30 is not determined -by anyagentother than said cam 10 while the movement of each of the plungers il is determined by the resistanc'e offered-thereto and the-power of theplungers 22 to overcome such resistance. The movement of said plungers 22 by gravity is necessarily relatively rapid but the transformation of the reciprocatingmove- -ment thereof into the rotary movement of the shafts 15' and thisin turn into r'eciproeating movement-'of'said plungers 3 at right angles to the direction,ofQmovement-of said plungers 22 causes said .plungers 3 to inove 26-relat1vely gently although rapidly forward and to prevent said plungers -when' thus moved forward to exert a fracturing force upon the nut.to be engaged between, the same and the head 6 ofthe plunger 30. Before proceeding with the descriptioii of the'nutcarrying means I desire to direct attention to the gearing employed foractu ating thewariousparts of the mechanism. The drive shaft "56 of the machine extends sis-longitudinallyofthe:frame and carries a fast pulley 57 and a loose pulley 58 over with a source of power. A vertical shaft" 59 transmits motion'from the.shaft,56-to" the shaft 27 on' which the cams 26 "are mounted'through the mediuniof the; bevel pinions 60, 61 and 62,*the latter meshingwith the bevel gear'63 on said shaft 27. '-Adjacent the other :end oflthe -machine' said shaft carries'a worm 64 having substantially a 45 degree pitch and which meshes with.a worm wheel 65 on the shaft 41 thus rotating the latterf The said shaft 56 passes through the gear-case 66 suitably supported 50 upon the frame of the machine and within said case carries the spur pinion 67 meshing within spur-gear G8, the latter bein rigid onacounter-shaft; 69. On said sha 69 is a segmental-spur gear 70 having teeth disposed 'overabout one-third of its peripher the remainder of the latter being smoot and having the .radius of-the pitch'line of said gear. The saidgear 70 is adapted to mesh with. a spur pinion 71 disposed on a so countershaft 72, said pinion 71 being provided one part of its periphery with a projection 73taking. the place of several teeth and having a concave outer face 74 the radius of which is equal to the pitch line a; radius of said gear 70.nnd is adapted to tween the ends or si e edges of said pockets detail in Fig. which .a belt is trained to gear said shaft 7 receive the portion of the periphery of the latter devoid of teeth and during the passage thereof said pinion 71 is held against rotation. On said shaft 2 is a spur pinion 75 which meshes with a spur, gear 76 on the countershaft 77, the latter carrying one of the sprockets 78 overwhich the carrier chain is trained. The said carrier chain consists of a plurality of links 79 pivotally secured together at their ends in the .usual and well-known manner. Midway between the ends of eachof said links 79 is a bearin 80 extending perpendicularly to the axes o 1,

the pivotal connections of said links withj each other, each of said bearings having a rectangular opening .in which the square 'Sl13.l1k 81 of.a pocket'82 for nuts is recelvedr A cotter-pin 83 in the lower end of said-"'- shank prevents -withdrawal of the latter fromsa-id sleeve 80 and the helic'al compres- 35 sion spring 84 interposed between the other'- end of said sleeve 80-and.said pocket 82 ,selvesjftoiiiiintain the latter normally" at the-up limit of itsmovement relatively I to ski f .sleeve. The said pocket 82 is concave-convex in cross-section and substant'ially' semi-cylindrical, one edge of the same being pped with a flan 85 projecting above t eother' ed of t e pocket. 'Be- 82 the latter are provided with concave re:

.cesses 86 in which the nuts are adapted to be. -reoeived, and at -86 and extending to the said side edges of either end of said the pockets are beveled faces 87, shown in The springs 84',are relatively weak andmaintainthe normall at the upper limits of their movement, T e pockets are' i so arranged that when dis osed between the 1m! plungers the latter are ree to enter the same at either end without coming in contact with the beveled ends thereof and thus immediately engage the containednut. In exerting crushing pressure on the ends of the nut it is obviously necessary that the shell of the latter shall be free toexpand between its ends so as to fracture over its entire circumference and for this reason weak springs 84 are used thereby enabling the expansion of the shell to readily depress, the pockets against the action thereof. J

.It sometimes\happens that a nut becomes lodged between adjacent pockets and serves to maintain them separated a little more 1120 than normally. \Vhere 'this occurs "the plungers in entering the ockets will en age the beveled end walls o the same an by forcing the latter out of their path crush the lodged nut. It will be obvious that in 125 theabsence of such beveled end wallsthe plungers would under these conditions strike the ends of the pocket and thereby obviously cause a break or other damage to the ma chine.

The pins 88 effecting pivotal connection of the links 79 with each other project beyond the side edges of said links and carry anti-friction rollers 89 on their projecting end portions. The said anti-friction rollers travel on rails 90 disposed on either side of the vertical plane of travel of the chain and serve to support said links against the dedering said recess .92 engage the said anti friction rollers 89, the said chain being thus set. in motion by the said sprocket.78, the sprocket 91 being idle. The said sprocket 91 is supported at a considerably lower elevation than said sprocket 78, the supporting means consisting of suitable brace rods connected with the frameof the machine The said rails 90 are angularly extendedfias at 93, at a downward incline and receive the anti-friction rollers 89 of the uchain after the latter have left the sprocket-filtand 'begin their upward travel. The said extended portionQfiS of said rails 90 is shown in detail in Fig. 12, the same beingprovidcd withoverhanging flanges. 94 between the opposing inner face; of whichthe upper end portions of the bearings 90 and shanks 8L and springs 84 travel. The upper faces-of said flanges- ?)l constitute the middle portion of the bot tom wall of a hopper 95 inwhich the nuts a re received. The rca r end of said h0 )per.is closed but the forward end and top of the same. is open. As'the pockets passv through said hoppcrnuts drop into the same .and are carried thereby into the'bearings .Of

the said head 6 of the phmgcrs. Six pairs of. the latter are provided and conseqiicntly it is cssential that at each movement of the chain or carrier six pockets ,each containing a nut shall be l'nought into alincme rt witli said plungcrs. To this cud the gearing previously described and contained in the gear case it; is arranged to intermittently impart movement to said carrier for a length equal to six of the links thereof; the intervals of travel of the chain being timed to alternate with the movements of the pl ungcrs. p y y i In order to enable thesprocket- 78 to be, adjusted on thcshaft 77 so as to insure said pockets being luiou llt into axial'alinemcnt with t hccra king p lungcrs -"l provide rigid with said sprocltct 78 a clutch '-|i|oinl)ci- 9t;

whit-h i-ngagcs a similar lutch" nicmbcr 97" with each other and serving to traii smit the movement of said shaft 77 to said sprocket. In the event that the pockets should not travel quite far enough or a little too far relat,ively.to the cracking plungers they may be r'eadily adjusted to be brought into proper position by turning the sprocket the required amount-relatively to. the shaft either forward or back relatively to the clutch member 97 by first disengaging the same from the latter andafter turning it rei ngaging it therewith.

The operation of the machine will be so readily understood from the foregoing description as to probably obviate the necessity of detail description of -the operation thereof.

I claim as my invention:

1. In a nut cracking machine, mechanisn for imparting indeterminate thrust movement to a cracking plunger, comprising a threaded rotatable member having threaded engagement with the plunger at one end and engaging a rigid-part of the frame of the machine at its other end, gear pinion onsaid plunger betweenatheends thereof, and a reciprocable rack-bar meshing with said pinion. for rotating said threaded member.

2. In a nut cracking machine, the combination with a rigid part of the frame and a recipro 'ablcplunger,of mechanism for impartin-g-indcterminatc thrust movement to said plunger in one dircctiomrelatively to said frame, comprisingarotatablc threaded member having threaded engagement with atileast one of said parts, a .gear pinion 't herco'n,- and a rat-lobar meshing with said.

pinion.. V

" '3. in a nut cracking machine. the combinationwith a rigid partof the frame and a reciprocable plimger; of mechanism for imparting indeterminate.tln'nst iiloveimcnt to said plunger in one direction relatively to said fra'ni, comprising afrotatable threaded member having threaded engagement with at ,lcast'one of said parts, a gear pinion tbcicori. a raclcbar meshing with'said pinion' and adapted to be=n|oved by gravity to rotate. said threaded inembcr in' one dircction,and powcr actuated means on the frame of the machine fol-restoring said rack-bar to its normal position after each movement thereof by gravity.

4-. In a nut crackingflmachine; the combination with a rigid parft of the frame and a rcl-iprm-able plunger, of mechimism for imparting indctcrmimllo "thrust-'- movement to said plnngcr'in onc'dircctiourclativelyto said" franm comprisinga rotatablemember cqiiipped with right and lefbthrcads rcspcctivclv atopp'osite ends and having thrcadcd cngagcmcnt with said plunger and said rigid part of sa d frame, a pinion rigid with said rotatable lncmlicl', and a rack-bar meshing with said pinion.

'5. In a nut cracking machine, the combination with arigid part of the frame and a reciprocable'plunger, 'of mechanism for imparting indeterminate thrust movement to said plunger in one direction relatively to said. frame comprising a rotatable member equipped with right and left threads respee tively at opposite ends and havingthreaded engagement with said plunger aridsaid rigid 10 part of said frame,'a pinion rigid with said rotatable member, a'rack-bar meshing with said pinion and adapted to'be noved by gravity to rotate said threadedfmember in one direction, and power actuated-means on the frame of the machine forrestoring said rack-bar to its normal position. after each movement thereof by gravity.

V 6. In a nut cracking machine, mechanism for imparting indeterminate thrust movement to a cracking plunger, comprising a threaded rotatable member having threaded engagement with a plung at ,one end and engaging a" rigid part 0 t frame of the machine at its other end, and a gear pinion forming part of the mechanism for imparting said thrust movement; to the said plunger, and a' reciprocable rack-bar meshing with said pinion for rotating saidthreaded member.

7. A nut cracking iiihehine comprising in combination, two" setsyof bpposed cracking plungers, nut supportin ;means interposed between the opposed en of said plungers,

. a reciprocating 'head'carrying one of said in one direction and, imparting movement thereto in said dil'GCillOIl' at two-distinct in-. tervals, a spring maintain'ing said head nor-h screw shafts'fha ving ri ht and left threaded endportions'res pective y engaging said menu ber and said' heads, spur pinions, rigido'n sosaiH 'screwbhafts between the ends thereof,

rack bars meshingfwith said pinions and aetuated in one direction by gravity, and cams actuating said rack bars' in the other. direction combinati6n,\ t wo sets of opposed cracking plungers, nut supportin means interposed a reci rocating headcarrying one of said sets 0 plungers,,a cam actuating the same in one directionand imparting movement thereto in said direction attwodistlnctin tervals, a spring maintaining said head'nor: mally at. the rearward limit of its movemeat, a plurality of reciprocating heads carand engaging tapped openings in at least sets of plungers, a, cam actuating the same;

8. Ainnt'eracking machine comprising in rying the other plungers, a member rigidly disposed on the :frame of the machine rearwardlyof said heads, screw shafts interposed between said member and said heads one of the latter respective elements, and means for'rotating said screw shafts at intervals alternately in opposite directions for imparting reciprocating movement to said heads. a

9.. A nut cracking machine comprising in. combination, two sets of opposed cracking plun ers, nut supporting means interpose between the opposed ends of said plungers, a reciprocating head carrying one of said sets of plungers, a cam actuating the same in one direction and imparting predetermined movement thereto in'said direction at two distinct intervals, a spring maintaining said 'head normally at the rearward limit of its movement, a plurality of reciprocating heads carrying the other plungers, a member rigidly disposed on the frame of the macltinerea'rwardly of said last-named heads, rotatable means interposed between said; member and; each of said respective heads and operativelyengaging both of the s- 1.

latter for imparting relative movement thereto, and means for rotating said means alternately in opposite direct-i033;

10. A nut cracking machine comprising in combination, two sets of opposed cracking plungers, nut support-ing means interposed between the opposed ends of said plungers,

a reciprocating head carrying one'of said sets of plungers,,a cam actuating the same 1n one ,di'rect1on and imparting movement thereto in said direction at two distinct intervals, aspring maintaining said head normally atthe rearward limit of its move-I ment, a plurality of reciprocating heads carlging -the other plungers,-a member ly disposed onthe frame of the machine rearwardly of said heads, rotatable members interposed between said rigid member andsaid heads and operatively engaging both o f said elements, means actuated by gravity in one direction operatively actuating said respective rotatable members independently of each other, for imparting movement to said heads in one direction, and power actuated means actuating said last-named-means in the other direction to reverse the movement of said heads,

' ll, In a nut craclting machine, the',combi- ;nat ion wit-ha supporting device for nuts, and means for imparting movement thereto between the opposed en sboi saldplungers,

'plungfirs spring actuated in one direction, 1powcr actuated means imparting movement thereto inthe opposite direction at respectivelydltierent intervals, a reciprocating head for and carrying each plunger of the other set, a member rigidly disposed on the frame rearwardly of said last-named heads, rotatable means interposed between each of said heads and said last-named member for imparting reciprocating movement to the latter, and reciprocating means imparting rotary movement to said members inpendently of each other in one direction and simultaneously in the opposite direction.

12. In a nut cracking machine, the combination with a supporting device for nuts, and means for imparting movement thereto at intervals, of opposed sets of cracking plungers disposed on respectively opposite sides of the said supporting devices, a .reciprocating head carrying one of said sets of plungers spring actuated in one direction, power actuated means imparting movement thereto in the opposite direction at respectively different intervals, a reciprocating head carrying each plunger of the other set, a member rigidly disposed on the frame, a rotatable threaded member interposed between each of said heads and said rigid member and engaging a tapped opening in at least one of said elements, a spur pinion rigid on each of said threaded members between the ends thereof, rack bars actuated by gravity in one direction meshing with each of said respective spur pinions and adapted to rotate each of said rotatable members independently of the other in one direction and a cam actuated reciprocating membcr movable in the path of and adapted to engage said rack bars and move the same simnltanemusly in the opposite direction.

13. [n a nut cracking machine. the combination with a supporting device for nuts and mcans for imparting movement thereto at intervals, of opposed sets of cracking plungers disposed on respectively opposite sides of the said supporting devices, a reciprocating head carrying one of said sets of plungers spring actuated in one direction, power actuated means imparting movement thereto in the opposite direction at respectively different intervals, a reciprocat" ing head carrying each plunger of the other set, a member rigidly disposed on the frame, rotatable members having 'respectively right and left threaded end portions interposed between each of said hcadsand said rigid member and engaging respectively right and left tapped openings in said respective last-named elements, and reciprocablc means operatively engaging said rotat-able mcnibcrs" for alternately rotating the same in opposite directions.

It. in a nut cracking machine, the combination with a supporting device for nuts, and mcans for imparting movcn'icnt thereto at intervals, of opposed sets of. cracking plungers disposed on respectively opposite sides of the said supporting devices, a recifprocating head carrying one of said sets 0 plungers spring actuated in one direction, power actuated means imparting movement thereto in the opposite direction at respectively ditferent intervals, a reciprocating head carrying each plunger of the other set, a member rigidly disposed on the frame, rotatable members having respectively right and left threaded end portions interposed between each of said heads and said rigid member and engaging respectively right and left tapped openings in said respective last-named elements, a spur pinion rigid with each of said rotatable members, a rack bar for each ofsaid spur pinions actuated by gravity in one direction for rotating the same independently of each other for imparting thrust movement to said heads in one direction, a reci rocable member movable in the path of said rack bars, and means adapted to actuate said reciprocable member to throw the same into engagement with said rack bars to raise the same simultaneously to return all of said heads to the other limit of their movement.

15. In a nut cracking machine, the combination with a supporting device for nuts equipped with pockets, and means for imparting intermittent movement thereto, of nut cracking plungers one disposed at either end of the pockets of said supporting device and adapted to be simultaneously moved to project into the same in engagement with the supported nut, the latter coacting with one of said plungers to form a stop to limit the movement of the other, means for imparting movement to the last-named plunger the distance determined by the other plunger and the interposed nut, and means for moving the last-named plunger atsuccessively diti'ercnt intervals in the same direction a predetermined distance to primarily en age and subsequently c 'ack the nut, said ast named means comprising a "mu equipped with surfaces of different radial projection from its axis of rotation, and means for adjusting the radial projection of one of said surfaces. .1

16. ,In a nut cracking machine, the combination with a supporting device for nuts and its actuating means, of a pair of cracking.

plungers one disposed on either side of the said supporting device, one of said plungers being spring actuated in one direction to maintain the same normally at the rearward limit of its movement, rotatable means for imparting movement to said plunger against its spring actuation to move same forward a given distance primarily and subsequently imparting given added movement in, the same direction, said means imparting said addcd movement adjustable relatively to itsaxis of rotation, a mcmbcr rigidly dis osed on the frame of the machine real-War ly of the other plungcr.a rotatable threaded memposed 5n either side of the plane "further thrust her interposed between the last-named lunger and operatively engaging both said elements for imparting relative movement thereto, gravity actuated means operatively engaging said rotatable member for imparting thrust movement to said plunger for a distance variable in accordance with the size of and determined by the nut to be cracked, and a cam actuated reciprocable member movable in the path of said lastnamed means and adapted to engage and actuate the same in the other direction for reversing the movement of said last-named plunger.

17. In a nut cracking machine, thecombination with a carrier for nuts equipped with spring supported pockets for the latter, said pockets having flaring end portions, of a pair of opposed plungers one disposed on either side of the path of travel of said carrier and adapted when moved toward each other to engage nuts disposed in said ockets, means simultaneously actuating 0th said plungers to move the same to project into said pockets, the movementof one of said plungers determined by engagement with the nut contained in nut coacting with the other of said plungers to constitute a stop, and means for im parting a secondary movement to the last named plunger to. crack said nut, the said springs supporting the said pockets permitting the latter to yield to the expansion of the shell of the nut in cracking.

.18. In a nut cracking machine, the combination with a carrier for nuts, means for imparting intermittent movement thereto, pockets carried thereby, springs supporting said pockets, beveled end Walls for said pockets, and opposed cracking plungers dis of travel of said pockets, of mechanism for simultaneously actuating said plungers to thrust the same into the ends of said pockets to engage contained nuts, and means adapted to impart movement to the plungcrs on one side of said carrier to crack the nuts, said pockets bein adapted to be depressed by expansion of ti ie shell of the nut between its ends due to the pressure of the cracking plungers on the ends thereof, said beveled end walls of said pockets adapted to be engaged by said plungcrs to correct the position. of the former relatively thereto against the action of an obstructing nut becoming lodged between contiguous pockets.

19. In a nut cracking machine, the com-- bination with opposed cracking plungers arranged in pairs and adapted to engage and craqk'interposed nuts, and means actuating said plungers intervals, of a carrier traveling between said opposed plungers, nut carrying pockets disposedon said carrier at regular intervals and movable relatively same and said said pockets, said thereto, springs engaging said pockets to maintain the same normally ina given position relatively to the carrier, there being concave recesses in the bottom of said pockets, the end walls of the latter being beveled and adapted to be engaged by the entering ends of said opposed plungers to impart movement to said pockets relatively to the carrier to correct their positions relatively to said plungers, a hopper for nuts through which said pockets travel, a driving element common to said plungers and said carrier, and gearing between the latter and said driving element for imparting given movement to the former at intervals alternating with movements of said plungers.

20. In a machine of the kind specified, means for imparting thrust movement to cracking plunger-s in the same direction at respective y different intervals comprising a rotatable shaft, a cam rigid therewith,a segmental projection on said cam, an auxiliary projection in the face of said segmental projection, and means for adjusting the projection of said auxiliary projection from said segmental projection.

In a machine of the kind specified, means for-imparting thrust movement to cracking plungers in the same direction at respectively different intervals comprising a rotatable shaft, a cam rigid therewith, a segmental projection on said cam, an auxiliary projection in the face of said segmental projection, the latter movably mounted in a recess in the face of said segmental projection, a Wedge in said recess disposed beneath said auxiliary projection and movable longitudinally relatively thereto to vary the projection thereof, and means for hoiding said auxiliary projection in its adjusted position.

22. In a machine of the kind specified, means for imparting 'thrustmovement to cracking plungers in the same direction at respectively different intervals comprising a rotatable shaft. a cam rigid therewith, a segmental projection on said cam, an auxiliary I projection in the face of said segmental projection, the latter movably mounted in a recess in the face of said segmental projection, I a wedge in said recess disposed beneath said [auxiliary projection and movable longitudinallv relatively thereto to vary the projection thereof, means for holding said auxiliary projection in its adjusted position, and means mounted in said cam opcratively cngaging said wedge to impart movement i thereto.

23. In a nut cracking machine, means for imparting thrust movement to cracking plungers at respectively different intervals in the same direction comprising a rotatable shaft, a cam rigid thereon, a segmental pro jection on the hub of said cam for imparting a primary thrust movement to the cracking plnngers. there being a recess in the face (if 021m member from the fave of said :egmenta] 10 said projection 11 mini-member mounted in I projection.

In testimony whereof I have signed my said recess. a wedge disposed in said recess underneath and cam n'leniber, a Set screw name H1 presente of two subscribing witengaglng said wedge for imparting niove- I1(&CS.

ment thereto in one direetion. and :1 set screw TADDEO SI'ZZ]. engaging said cam member to hold the same 'Jtnesses: firmly in engagement with Sflld Wedge, the RUDOLPH \VM. LOTZ,

latter serving to vary the projection of said M. M. BOYLE. 

